α -unbound levels in Ar34 from Ar36(p,t)Ar34 reaction measurements and implications for the astrophysical S30(α,p)Cl33 reaction rate

Long, Alexander Makenzie; Adachi, T.; Beard, M.; Berg, G. P.  A.; Couder, M.; deBoer, R. J.; Dozono, M.; Görres, J.; Fujita, H.; Fujita, Y.; Hatanaka, K.; Ishikawa, D.; Kubo, T.; Matsubara, H.; Namiki, Y.; O'Brien, S.; Ohkuma, Y.; Okamura, H.; Ong, H. J.; Patel, D.; Sakemi, Y.; Shimbara, Y.; Suzuki, S.; Talwar, R.; Tamii, A.; Volya, A.; Wakasa, T.; Watanabe, R.; Wiescher, M.; Yamada, R.; Zenihiro, J.

doi:10.1103/PhysRevC.97.054613

Title: $α$ -unbound levels in ${}^{34}{Ar}$ from ${}^{36}{Ar} (p, t) {}^{34}{Ar}$ reaction measurements and implications for the astrophysical ${}^{30}S (α, p) {}^{33}{Cl}$ reaction rate

Abstract

The ${}^{30}S (α, p) {}^{33}{Cl}$ reaction has been identified in several type-1 x-ray burst (XRB) sensitivity studies as a significant reaction within the α , p process, potentially influencing not only the abundances of burst ashes but also the bolometric shape of double-peaked light curves coming from certain XRB systems. Given the dearth of experimental data on the ${}^{30}S (α, p) {}^{33}{Cl}$ reaction at burst temperatures, we have performed high energy-resolution forward-angle ${}^{36}{Ar} (p, t) {}^{34}{Ar}$ measurements in order to identify levels in ³⁴Ar that could appear as resonances in the ${}^{30}S (α, p) {}^{33}{Cl}$ reaction Energies of levels identified in this research, along with model-based assumptions for spin assignments and spectroscopic factors, were then used to determine a rate for the ${}^{30}S (α, p) {}^{33}{Cl}$ reaction based on a narrow-resonance formalism. The rates determined in this work are then compared with two standard Hauser-Feshbach model predictions over a range of XRB temperatures.

Authors:

^[1]; Adachi, T. ^[2]; Beard, M. ^[3]; Berg, G. P. A. ^[3]; Couder, M. ^[3]; deBoer, R. J. ^[3]; Dozono, M. ^[4]; Görres, J. ^[3]; Fujita, H. ^[5]; Fujita, Y. ^[5]; Hatanaka, K. ^[5]; Ishikawa, D. ^[5]; Kubo, T. ^[6]; Matsubara, H. ^[5]; Namiki, Y. ^[6]; O'Brien, S. ^[3]; Ohkuma, Y. ^[6]; Okamura, H. ^[5]; Ong, H. J. ^[5]; Patel, D. ^[3] more »

Univ. of Notre Dame, IN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Tohoku Univ., Sendai (Japan)
Univ. of Notre Dame, IN (United States)
Kyushu Univ. (Japan)
Osaka Univ. (Japan)
Niigata Univ. (Japan)
Univ. of Notre Dame, IN (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
Florida State Univ., Tallahassee, FL (United States)

Publication Date:: Tue May 22 00:00:00 EDT 2018

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1524392

Alternate Identifier(s):: OSTI ID: 1438271

Report Number(s):: LA-UR-17-31506
Journal ID: ISSN 2469-9985; PRVCAN

Grant/Contract Number:: 89233218CNA000001; PHY-1068192; SC0009883

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 97; Journal Issue: 5; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Atomic and Nuclear Physics; Astronomy and Astrophysics

Citation Formats


                    Long, Alexander Makenzie, Adachi, T., Beard, M., Berg, G. P.  A., Couder, M., deBoer, R. J., Dozono, M., Görres, J., Fujita, H., Fujita, Y., Hatanaka, K., Ishikawa, D., Kubo, T., Matsubara, H., Namiki, Y., O'Brien, S., Ohkuma, Y., Okamura, H., Ong, H. J., Patel, D., Sakemi, Y., Shimbara, Y., Suzuki, S., Talwar, R., Tamii, A., Volya, A., Wakasa, T., Watanabe, R., Wiescher, M., Yamada, R., and Zenihiro, J. α -unbound levels in Ar34 from Ar36(p,t)Ar34 reaction measurements and implications for the astrophysical S30(α,p)Cl33 reaction rate.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevC.97.054613.

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                    Long, Alexander Makenzie, Adachi, T., Beard, M., Berg, G. P.  A., Couder, M., deBoer, R. J., Dozono, M., Görres, J., Fujita, H., Fujita, Y., Hatanaka, K., Ishikawa, D., Kubo, T., Matsubara, H., Namiki, Y., O'Brien, S., Ohkuma, Y., Okamura, H., Ong, H. J., Patel, D., Sakemi, Y., Shimbara, Y., Suzuki, S., Talwar, R., Tamii, A., Volya, A., Wakasa, T., Watanabe, R., Wiescher, M., Yamada, R., & Zenihiro, J. α -unbound levels in Ar34 from Ar36(p,t)Ar34 reaction measurements and implications for the astrophysical S30(α,p)Cl33 reaction rate.  United States.  https://doi.org/10.1103/PhysRevC.97.054613

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                    Long, Alexander Makenzie, Adachi, T., Beard, M., Berg, G. P.  A., Couder, M., deBoer, R. J., Dozono, M., Görres, J., Fujita, H., Fujita, Y., Hatanaka, K., Ishikawa, D., Kubo, T., Matsubara, H., Namiki, Y., O'Brien, S., Ohkuma, Y., Okamura, H., Ong, H. J., Patel, D., Sakemi, Y., Shimbara, Y., Suzuki, S., Talwar, R., Tamii, A., Volya, A., Wakasa, T., Watanabe, R., Wiescher, M., Yamada, R., and Zenihiro, J. Tue .  
"α -unbound levels in Ar34 from Ar36(p,t)Ar34 reaction measurements and implications for the astrophysical S30(α,p)Cl33 reaction rate".  United States.  https://doi.org/10.1103/PhysRevC.97.054613.  https://www.osti.gov/servlets/purl/1524392.

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@article{osti_1524392,

  title        = {α -unbound levels in Ar34 from Ar36(p,t)Ar34 reaction measurements and implications for the astrophysical S30(α,p)Cl33 reaction rate},

  author       = {Long, Alexander Makenzie and Adachi, T. and Beard, M. and Berg, G. P.  A. and Couder, M. and deBoer, R. J. and Dozono, M. and Görres, J. and Fujita, H. and Fujita, Y. and Hatanaka, K. and Ishikawa, D. and Kubo, T. and Matsubara, H. and Namiki, Y. and O'Brien, S. and Ohkuma, Y. and Okamura, H. and Ong, H. J. and Patel, D. and Sakemi, Y. and Shimbara, Y. and Suzuki, S. and Talwar, R. and Tamii, A. and Volya, A. and Wakasa, T. and Watanabe, R. and Wiescher, M. and Yamada, R. and Zenihiro, J.},

  abstractNote = {The S30(α,p)Cl33 reaction has been identified in several type-1 x-ray burst (XRB) sensitivity studies as a significant reaction within the α,p process, potentially influencing not only the abundances of burst ashes but also the bolometric shape of double-peaked light curves coming from certain XRB systems. Given the dearth of experimental data on the S30(α,p)Cl33 reaction at burst temperatures, we have performed high energy-resolution forward-angle Ar36(p,t)Ar34 measurements in order to identify levels in 34Ar that could appear as resonances in the S30(α,p)Cl33 reaction Energies of levels identified in this research, along with model-based assumptions for spin assignments and spectroscopic factors, were then used to determine a rate for the S30(α,p)Cl33 reaction based on a narrow-resonance formalism. The rates determined in this work are then compared with two standard Hauser-Feshbach model predictions over a range of XRB temperatures.},

  doi          = {10.1103/PhysRevC.97.054613},

  journal      = {Physical Review C},

  number       = 5,

  volume       = 97,

  place        = {United States},

  year         = {Tue May 22 00:00:00 EDT 2018},

  month        = {Tue May 22 00:00:00 EDT 2018}

}

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https://doi.org/10.1103/PhysRevC.97.054613

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Cited by: 11 works

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Figures / Tables:

FIG. 1: ³⁴Ar spectra as seen in the focal plane of the Grand Raiden spectrograph at $θ$_lab = 0 ° for two different magnetic field settings (subpanels a and b). With these two magnetic field settings a full energy region from the g.s. to 11 MeV in excitation energy ismore »

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Works referencing / citing this record:

Electric and magnetic dipole modes in high-resolution inelastic proton scattering at 0°
journal, July 2019

von Neumann-Cosel, Peter; Tamii, Atsushi
The European Physical Journal A, Vol. 55, Issue 7
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Title: α -unbound levels in Ar 34 from Ar 36 ( p , t ) Ar 34 reaction measurements and implications for the astrophysical S 30 ( α , p ) Cl 33 reaction rate

Abstract

Citation Formats

Figures / Tables:

Discovery of intense X-ray bursts from the globular cluster NGC 6624 journal, April 1976

First measurement of S 30 + α resonant elastic scattering for the S 30 ( α , p ) reaction rate journal, January 2018

X-ray bursts at extreme mass accretion rates from GX 17+2 journal, February 2002

Astrophysical Reaction Rates From Statistical Model Calculations journal, May 2000

Alpha-particle spectroscopic strengths using the ( p , p α ) reaction at 101.5 MeV journal, April 1984

( p , t ) Reaction on Even-Even N = Z Nuclei in the 2 s 1 d Shell journal, February 1972

(6Li, d) reactions on 24Mg and 26Mg at 73 MeV journal, May 1983

Low-lying neutron f p -shell intruder states in 27 Ne journal, January 2012

Proton single-particle reduced widths for unbound states journal, May 1997

Dependence of X-Ray Burst Models on Nuclear Reaction Rates journal, October 2016

Wide-window gas target system for high resolution experiment with magnetic spectrometer journal, June 2012

The AME2016 atomic mass evaluation (II). Tables, graphs and references journal, March 2017

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Magnetic spectrometer Grand Raiden journal, February 1999

The reaction branching 31P(p, γ)/31P(p, α) in the RP-process journal, October 1991

Nuclear Physics of Stars book, January 2015

High-precision 28 Si( p , t ) 26 Si reaction to determine 22 Mg( α , p ) 25 Al reaction rates journal, August 2011

Realization of matching conditions for high-resolution spectrometers journal, May 2002

Ground-state alpha-transfer spectroscopic factors of sd -shell nuclei journal, August 1979

Dependence of X-Ray Burst Models on Nuclear Masses journal, August 2017

Level structure of 30 S and its importance in the 26 Si( α , p ) 29 P and 29 P( p , γ ) 30 S reaction rates journal, December 2012

Energies, decay schemes and lifetimes of levels in 34Ar measured using the 32S(3He, nγ)34Ar reaction journal, April 1974

Systematics of Ground-State α -Particle Spectroscopic Strengths for sd - and fp -Shell Nuclei journal, October 1975

( d , Li 6 ) reaction on Mg 24 and Mg 26 at E d = 80 MeV journal, August 1980

X-ray bursts and neutron-star thermonuclear flashes journal, November 1977

Multipeaked X-ray bursts from 4U/MXB 1636-53 - Evidence against burst-induced accretion disk coronae journal, October 1987

Structure of 22Mg, 26Si, 34Ar and 38Ca via the (3He, n) reaction journal, September 1986

Matching of a beam line and a spectrometer New beam line project at RCNP journal, April 1997

High resolution beam line for the Grand Raiden spectrometer journal, April 2002

sd -shell observables for the USDA and USDB Hamiltonians journal, December 2008

Nuclear clustering using a modern shell model approach journal, April 2015

Explosive hydrogen burning journal, January 1981

Unusual X-ray burst profiles from 4U/MXB 1636-53 journal, December 1985

A Composite Nuclear-Level Density Formula with Shell Corrections journal, August 1965

Reaction rates and reaction sequences in the rp-process journal, September 1994

Nuclear level density and the determination of thermonuclear rates for astrophysics journal, September 1997

High-precision ( p , t ) reaction measurement to determine Ne 18 ( α , p ) Na 21 reaction rates journal, November 2009

The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis journal, September 2008

High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS journal, October 2011

The Nuclear Reaction Waiting Points: 22 Mg, 26 Si, 30 S, and 34 Ar and Bolometrically Double-peaked Type I X-Ray Bursts journal, May 2004

Alpha-clustering systematics from the quasifree ( p , p α ) knockout reaction journal, January 1981

Nuclear burning in accreting neutron stars and X-ray bursts journal, February 1978

Nuclear Data Sheets for A = 30 journal, September 2010

γ-ray bursts from thermonuclear explosions on neutron stars journal, September 1976

34Ar and T = 1 states in 34Cl from two-nucleon pick-up reactions journal, November 1969

The Inelastic Scattering of Neutrons journal, July 1952

First measurement of the 33 Cl( p , α ) 30 S reaction journal, October 2011

Effective interactions for the 0 p 1 s 0 d nuclear shell-model space journal, September 1992

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Title: $α$ -unbound levels in ${}^{34}{Ar}$ from ${}^{36}{Ar} (p, t) {}^{34}{Ar}$ reaction measurements and implications for the astrophysical ${}^{30}S (α, p) {}^{33}{Cl}$ reaction rate

Discovery of intense X-ray bursts from the globular cluster NGC 6624
journal, April 1976

First measurement of ${}^{30}S + α$ resonant elastic scattering for the ${}^{30}S (α, p)$ reaction rate
journal, January 2018

X-ray bursts at extreme mass accretion rates from GX 17+2
journal, February 2002

Astrophysical Reaction Rates From Statistical Model Calculations
journal, May 2000

Alpha-particle spectroscopic strengths using the ( $p, p α$ ) reaction at 101.5 MeV
journal, April 1984

( $p, t$ ) Reaction on Even-Even $N = Z$ Nuclei in the $2 s 1 d$ Shell
journal, February 1972

(6Li, d) reactions on 24Mg and 26Mg at 73 MeV
journal, May 1983

Low-lying neutron $f p$ -shell intruder states in $^{27}$ Ne
journal, January 2012

Proton single-particle reduced widths for unbound states
journal, May 1997

Dependence of X-Ray Burst Models on Nuclear Reaction Rates
journal, October 2016

Wide-window gas target system for high resolution experiment with magnetic spectrometer
journal, June 2012

The AME2016 atomic mass evaluation (II). Tables, graphs and references
journal, March 2017

Indirect study of the stellar ${}^{34}{Ar} (α, p) {}^{37}K$ reaction rate through ${}^{40}{Ca} (p, t) {}^{38}{Ca}$ reaction measurements
journal, May 2017

Magnetic spectrometer Grand Raiden
journal, February 1999

The reaction branching 31P(p, γ)/31P(p, α) in the RP-process
journal, October 1991

Nuclear Physics of Stars
book, January 2015

High-precision $^{28}$ Si( $p$ , $t$ ) $^{26}$ Si reaction to determine $^{22}$ Mg( $α$ , $p$ ) $^{25}$ Al reaction rates
journal, August 2011

Realization of matching conditions for high-resolution spectrometers
journal, May 2002

Ground-state alpha-transfer spectroscopic factors of $sd$ -shell nuclei
journal, August 1979

Dependence of X-Ray Burst Models on Nuclear Masses
journal, August 2017

Level structure of $^{30}$ S and its importance in the $^{26}$ Si( $α$ , $p$ ) $^{29}$ P and $^{29}$ P( $p$ , $γ$ ) $^{30}$ S reaction rates
journal, December 2012

Energies, decay schemes and lifetimes of levels in 34Ar measured using the 32S(3He, nγ)34Ar reaction
journal, April 1974

Systematics of Ground-State $α$ -Particle Spectroscopic Strengths for $sd$ - and $fp$ -Shell Nuclei
journal, October 1975

( $d$ , ${}^{6}{Li}$ ) reaction on ${}^{24}{Mg}$ and ${}^{26}{Mg}$ at $E_{d} = 80$ MeV
journal, August 1980

X-ray bursts and neutron-star thermonuclear flashes
journal, November 1977

Multipeaked X-ray bursts from 4U/MXB 1636-53 - Evidence against burst-induced accretion disk coronae
journal, October 1987

Structure of 22Mg, 26Si, 34Ar and 38Ca via the (3He, n) reaction
journal, September 1986

Matching of a beam line and a spectrometer New beam line project at RCNP
journal, April 1997

High resolution beam line for the Grand Raiden spectrometer
journal, April 2002

$sd$ -shell observables for the USDA and USDB Hamiltonians
journal, December 2008

Nuclear clustering using a modern shell model approach
journal, April 2015

Explosive hydrogen burning
journal, January 1981

Unusual X-ray burst profiles from 4U/MXB 1636-53
journal, December 1985

A Composite Nuclear-Level Density Formula with Shell Corrections
journal, August 1965

Reaction rates and reaction sequences in the rp-process
journal, September 1994

Nuclear level density and the determination of thermonuclear rates for astrophysics
journal, September 1997

High-precision $(p, t)$ reaction measurement to determine ${}^{18}{Ne} (α, p) {}^{21}{Na}$ reaction rates
journal, November 2009

The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis
journal, September 2008

High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS
journal, October 2011

The Nuclear Reaction Waiting Points: ²² Mg, ²⁶ Si, ³⁰ S, and ³⁴ Ar and Bolometrically Double-peaked Type I X-Ray Bursts
journal, May 2004

Alpha-clustering systematics from the quasifree ( $p, p α$ ) knockout reaction
journal, January 1981

Nuclear burning in accreting neutron stars and X-ray bursts
journal, February 1978

Nuclear Data Sheets for A = 30
journal, September 2010

γ-ray bursts from thermonuclear explosions on neutron stars
journal, September 1976

34Ar and T = 1 states in 34Cl from two-nucleon pick-up reactions
journal, November 1969

The Inelastic Scattering of Neutrons
journal, July 1952

First measurement of the $^{33}$ Cl( $p, α$ ) $^{30}$ S reaction
journal, October 2011

Effective interactions for the 0 p 1 s 0 d nuclear shell-model space
journal, September 1992

Electric and magnetic dipole modes in high-resolution inelastic proton scattering at 0°
journal, July 2019